It depends on a number of issues. Are you breeding for the survival of a certain species (i.e. your trying to preserve an animal species). To this I say all for it.
If you're thinking about humans, and we're breeding to build a stronger person. This happens indirectly. People with muscles are usually attracted to people with other muscles. People that are smart are usually attracted to smart people. This is taking the ultimate survival standpoint. People that are unable to concieve look for the best possible donor (smart, athletic, healthy)
If you're thinking from an ethical standpoint, it would be wrong to force people to become nothing more breeders. That is one of the things that seperates people from animals. The ability to choose beyond our primary urges (food, shelter)
there you go, three topics, enough for a good essay.
2006-12-15 06:41:52
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answer #1
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answered by Dennis D 2
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Wow !! that is a big subject.... I can think of ONLY GOOD things for selective breeding.. Remember that breeding is NOT only in animals but also poultry(part of the animal complex) and foods.. When in Africa, I worked diligently to selective breeding of sorghum in order to develop a breed of sorghum (and also rice) that could grow and produce in a shorter period of time due to rainfall constraints, etc etc etc.
The genetic enhancement of agricultural products may be one of the oldest human activities. Crops have been bred to improve yields, enhance taste, and extend the growing season. Each of the 15 major crop plants, which provide 90 percent of the globe's food and energy intake, has been extensively manipulated, hybridized, inter-bred and modified over the millennia by countless generations of farmers intent on producing crops in the most effective and efficient ways possible.
Here are a few of the current benefits. It is possible for better-tasting tomatoes to grow year round. Because the fruit softens more slowly, tomatoes bred through biotechnology can stay on vines longer before shipping to market and, in the meantime, gain added flavor and color. This benefit will potentially be possible with other fruits such as peaches, bananas and strawberries. Also, crops are becoming more environmentally friendly. Crops will be resistant to plant virus disease through a process of giving the plant a genetic "vaccine." That means farmers will require less chemical spray to control the spread of crop disease. Disease resistance will help crops such as squash, melons, bananas, cucumbers, lettuce, alfalfa and more. Plants like potatoes and cotton are able to resist insects on their own. New varieties of these crops will produce natural substances to ward off destructive insects. The plants will produce their own Bacillus thuringiensis or "Bt," which currently is a popular home gardener's biological remedy to control insects. Crops are then more tolerant to herbicides. Soon, genetically modified crops such as cotton, corn, and soybeans will give farmers a choice to make fewer applications and to use more environmentally friendly herbicides, which will mean reduced overall chemical use and less damage to the environment.
This is a very large subject and I am sure that if you went to google.com you could plug in this subject and you could get tons of information about it.. Good luck on your paper !!
2006-12-15 06:37:45
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answer #2
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answered by Anonymous
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Selective breeding allows us the certainty that our blood line will continue and prosper.
2006-12-15 06:35:21
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answer #3
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answered by Wat Da Hell 5
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